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Table 2 VAS (visual analogue scale) pain score at all follow up visits

From: Bisphosphonate combination therapy for non-femoral avascular necrosis

Mean VAS

Baseline

4 weeks

1 year

2 year

Last follow-up

Mean (range)

7.72 (5–9)

3.12 (1–6)

2.44 (0–4)

0.83 (0–3)

0.56 (0–3)

P value (t test)

 

< 0.0001

< 0.0001

< 0.001

< 0.001